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Scilab help >> Elementary Functions > Trigonometry > cotd


element-wise cotangent function, argument in degree

Calling Sequence

y = cotd(x)



a real array.


a real array with same dimensions as x.


The entries of y are the cotangents of the corresponding entries of x supposed to be given in degree. t=cos(x)./sin(x). For entries equal to n*180 with n integers the results are infinite, whereas cotg(n*%pi) is large but finite because %pi cannot be represented exactly. For entries equal to n*90 with n integers and odd the results are exactly 0.


x=[30 45 60 90];

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Last updated:
Tue Apr 02 17:36:21 CEST 2013